Machine for scarfing and bending tube-skelps



5 Sheets-Sheet 2;

(No Model.)

J. HOO-VEN. MAGHINE FOR SGARPING AND BEN DING TUBE SKELPS.

No. 416,731. Patented Dec. 10, 1889..

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J HOOVEN,

5 Sheets-Sheet 3.

MACHINE FOR SOA'RPING AND BENDING TUBE SKBLPS.

Patented Dec. 10, 1889.

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J. HOOV MACHINE FOR SGARPING AND ING TUBE SKELPS. No. 416,731. Patented Dec. 10, 1889.

(No Model. v 5 Sheets- Sheet 5.

J1 HOOVEN. MACHINE FOR SGARPING AND BBNDING TUBE SKELPS.

\ No. 416,731. Patented Dec. 10, 1889 witweooeo WK. 3% a N. PETERS. Phclulilhflgnphe Wilhinglun. DJQ

UNITED STATES PATENT OFFICEQ JAMES HOOVEN, NORRISTOIVN, PENNSYLVANIA.

MACHINE FOR SCARFINGAND B END|NG TUBE-SKE-LPS.

SPECIFICATION forming part of Letters Patent No. 416,731, dated December 10, 18,89.

Application filed July 2, 1889. Serial No. 316,314. (No model.) I F.

To all whom it may concern: I

Be it known that 1, JAMES HOOVEN, a citi-- zen of the United States, residing at Norristown, in the county of Montgomery and State of Pennsylvania, have invented certain new; and useful Improvements in Machines for} Scarfin g and Bending; and I do declare the fol-i lowing. to be a full, clear, andexact description of the invention, such as will enable others skilled in the art to which it appertains to: make and use the same, reference being had to the accompanying drawings, and to the let-i ters of reference marked thereon, which form} a part of this specification. f

Figure 1 is a plan View of the device. Fig, 2 is a side view. Fig. 3 is a detail looking in? the direction of the arrow on line 3 3, Fig. 2. Fig. 4c is an enlarged detail looking in the di-;

rection of the arrow on line 4 4, Fig. 2, parts being broken away, the dotted lines showing parts beyond. Figs. 5 and 6 are edge and side views of the guides along the sides of the device. Figs. 7 and 8 are plan and end views of the transverse guide -plates for the side guides. Fig. 9 is an enlarged front end view of the device. Fig. 10 is a section on line 10 10, Fig. 11. Fig. 11 is aninside View of the cutters. Figs. 12 and 13 are plan and edge views of the knives of the scarfingcutters.

Fig. 14 is an enlarged side view with parts broken away, so as to show the guides. Fig. 15 is a top view, partly in section. Fig. 16 is a perspective of a side guide; and Fig. 17 is a sectionon line 17 17, Fig. 16. Q 35 This invention relatesto improvements in skelping-machines such as are shown in patents granted to me March 23, 1880, No.

it is all ready for a lap-weld.

In the annexed drawings, the letter A indicates the bed of the scarfer, and B that of the bender, which may be in one piece, being in line, as shown. Bolted to and rising from i the bed A are the pairs of standards 0,

and F, the first three being near togethcr,the last two somewhat spaced apart, as ata. In

these standards are placed the boxesv c c 'd cl e ffshafts of the feeding-rollers C C D D E E of which there are three sets, and the s'etof withdrawingrolls F F As these rolls are constructed alike, a description of one set. will suflice. The upper roll 0 consists ofthree disks 0 0' 0 the lower roll C ofthree disks 0 0' c internally screwthreaded and placed upon the threaded shafts c and 0 the former above, the latter below, and are held in any middle disk 0' maybe narrower than the others and is the same size and shape in both the upper and lower rolls; but the lower disks 0 while they are of the same size as the upper disks 0, they have 'on the outside, flanges c 3 The standards 0, D, E, and F have on' each side a bracket 12. Secured to these brackets between the standards 0 and D and In these boxes are journaled the The D and E, in' front of the standard 0, at the rear of the standard E, and in front and rear of the standard F, are the transverse guideplates G. (Shown enlarged in Figs. 7 and 8,)

These plates when used between the standards have the pairs of wings g g, by which they are bolted to the brackets. When used only at front or rear, they have only thewings on the side next to the standard. These guide-plates have the transverse angular groove g in their tops and the slots 9 and the hole g at the middle between the slots. These slots are to receive the pins h of the side guides H, such as shown in Figs. 5. and 6 and in end view in Fig. 9. These guides the sides 7L2, which flare outwardly toward the sides of the machine, the flare, of these sides 71 being the same as that of the flanges of consist of the flat base h, from which rise the other disks of the lower rolls already 'described. At each end of the guides there is made a notch h as shown. These guides have the projections 71* on the outside, provided with the tongues 77/ and they are put into position with these tongues 71 111 the grooves g of the transverse guide-plates G,

and are held; in any position by thepins h. The length of these guide-platesis such that shape, but somewhat larger. straight body portion 12 and the beveled cut- 4 their flaring edges form a practical continuation of the flanges of the outer disks of the lower rolls, the shape of the notches g permitting the guides and disks to come close together.

The construction already described produces feed-rolls and guide-plates which are readily adjustable for varying widths of skelps, and at the same time preserves a continuous guide. on each side of the skelp, keeping it true and steady.

In the holes 9 of the guide-plates G is secured a strip G, which is in line with the middle disks of the feed-rolls.

In the space a, between the standards E and F, there is secured to the base B, on each j side,a supporter I. Engaging this supporter I, by an ordinary tongue and groove, is the block K, and through these blocks passes the right and left hand threaded rod is, having the wheel or crank Rising from these blocks K are the open frames L, having the bearings Z Z at their tops and bottoms. In these hearings are journaled the searfing-cutters. M. The plate m of the cutters is made in the general shape of the fru-stum of a cone.

Just inside of the rim m there is a circumferential rabbet m and the edge m runs in toward the center as a bevel to the point m then, thence to the center the surface m is flat and parallel with the outer face of the plate m. Beyond this surface m projects the box m forminga shoulder m Running from this box m to the rim m are angular radial grooves m". placed the scarfing-knives N. These knives are fitted to the grooves, being of the same ting-edges 01.. Their straight edges n project beyond the faces m their ends a rest in the rabbet m and their cutting-edges 2t extend beyond the edges m".

The edges 11. are not only beveled outwardly, so as to scarf, but they are beveled from front to back, so as to have a sharp cutting edge. lVhen these knives N are in place, they are secured by a retaining-disk O, which slips over the box m bears against the edges 17. of the knives, and is held securely in place by the bolts 0, which pass through it and the plate M. These cutters are threaded upon the vertical journals P, and held in position by the jam-nuts p,-thc journals having bearings in the frame:

L, and at their tops the beveled wheels 19'. Rising from the tops of the frames L are the p. These wheels 19 are engaging with the brackets 19 so that they are rotatable in said knives project in opposite directions.

' applied to them.

They have the As clearly indicated in the drawings, the bending portion of this machine is identical with that shown in the patents referred to, except that an additional set of benders has been introduced so as to specially adapt the Therefore to adapt my machine to preparing the skelp for a lap-weld, I have added to it the peculiar kind of bending-rolls shownin detail in Fig. In this pair one roll-the upper R, as shownhas the usual semicircular peripheral groove; but the peripheral groove 3, in the lower roll S, is made with one side s more abrupt or nearer the vertical than the other .9 thus bringing. the edge 5 within the edge 1" of the upper roll. The last pair of rolls T and U of the machine have the usual semicircular peripheral grooves.

In use the strip is fed to the feeding-rolls at the front of the machine and is held firmly in place by them, the flanges c of the lower outer disks 0 and the edges h of the side guides H keeping the strip true. The feeding-rolls and the withdrawing-rolls are driven in any suitable mannersuch, for example, as bya chain, as shown in Fig. 1- positive power being applied to one pair. Within these grooves are The scarfers are driven by positive power As the strip meets the cutters M, these revolving against it scarf the edges of the strip, as clearly indicated in Fig.

4, the strip in passing from the cutters being j secured and held firmly by the withdrawingrolls. From these it is passed to the bender, where the usual operation takes place. As the bent strip reaches the pair of rolls R and S, the shape of the groove 5 in the lower roll S turns the lower edge of the strip within the upper edge, thus causing them to lap. As they pass between the rolls T and U, the edges are pressed together, the tube being given the circular form, the edges thus being put into condition for a lap-weld. Such a machine, scarfing and bending the skelp at one operation, simplifies, cheapens, and expedites the operation.

The machine is also adapted for strips of varying widths, as the disks of the rolls and L the guides can be moved in and out.

brackets 19 in which is jou'rnaled the shaft p carrying byasliding connection the wheels p, which are beveled and engage the wheels 1 Having thus described my invention, what I claim is.

1. The combination of the feed-rolls, the

j scarfing-cutters independent in their action, j andthe bending-rolls, as set forth. brackets, but can move with them along the j 2. The combination of the searfing-cutters and the bending-rolls, one roll of one pair of bending-rolls having one edge of the groove in. its periphery within the corresponding edge of the groove of its companion roll, as set forth.

3. The feeding-rolls consisting of the adj ustable disks, as set forth. I

4. The combination of the guides'H, consisting of the base h' and flaring edges 77/ with the outer disks 0 c of the lower feedrolls, such disks having the flanges 0 the edges 71 and flanges 0 being in line, as set forth.

5. The transverse guide-plates G, having the slots, groove g and slots in combination with the guides H, having the projection 72 provided with the tongue 71 and the bolt h, as set forth. r

6. The combination of the supports 1, the blocks K, carrying the cutter supporting frames, and the right and left hand threaded rod 7t, as set forth.

7. The supporting-frames L, in combination with the cutters M, having the journals P, which bear in said frame and have the bevelwheels 19', the shaft 19 and its beveled Wheels 19 with the brackets p as set forth.

8. The cutter M, consisting of the plate m, having the radial groovesm", the box m and rim 011?, there being a rabbet m within said rim, the knives N, held in the grooves, but projecting beyond the edges thereof, the retaining-disk O, and the bolts 0, as set forth.

9. In a skelp-bending machine for preparing the skelp for a lap-Weld, apair of rolls having peripheral grooves, one edge of the groove of one roll being within the corresponding edge of the groove of the companion roll, as set forth.

In'testimony whereof I affix my signature in presence of two Witnesses.

7 JAMES HOOVEN. Witnesses: v

WILLIAM H. ADLE, JAMES HOOVEN, Jr. 

